But now, with IntelliJ 11.1.2, it's happening often again: slow response while typing.

When typing characters in java code, IntelliJ is responding really sluggish and slow.

It really seems slower than 10 to me.

Why?

How can I stop it again?

Why does it have to parse stuff while I type? Can't it give preference to what I'm doing? I can wait a few seconds for an autocompletion, but I cannot wait more than 50ms for a letter appearing on the screen after I typed it...

I'm sorry, it's not that easy right now to send a CPU snapshot due to various reasons (including it containing confidential data).

But I think I have a clue why it's slow!

On the left side of IntelliJ (by default) you have the "Project" that shows all the directories and packages. Whenever doing *anything* in IntelliJ, in the top right of that, it shows a small circular animated loading indicator in the top right of that, as if it's refreshing the whole list.

When typing text, it also does that all the time (but not when not typing)!